Ryan Stoneberg begins his 15th season with the Royals and his fifth as Major League strength and conditioning coach. He served the previous five seasons as minor league strength and conditioning coordinator, and the five seasons prior as Latin America strength and conditioning coordinator. His current duties include coordinating all strength and conditioning activities across both the Major and minor leagues of the organization. In 2015, he was named the recipient of the Nolan Ryan Award by the Professional Baseball Strength and Conditioning Society. The annual award honors the outstanding strength and conditioning coach in professional baseball.

Stoneberg joined the Royals from the Diamondbacks organization, where he served as a minor league strength and conditioning coach from 1999-2001. He earned his bachelor of science in physiological sciences from the University of Arizona in 1999, while pitching for the Wildcat baseball team. Stoneberg also played baseball and received an associate of arts and associate of math and science degrees from Lassen Community College in 1996. Under the guidance of Steve Abney, Glen Yonan and John Deal, his Cougar baseball team made the Final Four twice, the only two visits in school history.

He resides in Phoenix, Ariz. during the offseason, and has a daughter, Sydney.